Summary of Significant Accounting Policies - Schedule of Net Loss Per Share (Details) - shares |
9 Months Ended | |
|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Summary of Significant Accounting Policies | ||
| Total (in shares) | 18,889,757 | 17,303,942 |
| Shares issuable upon exercise of options to purchase Class A Ordinary Shares | ||
| Summary of Significant Accounting Policies | ||
| Total (in shares) | 18,508,116 | 14,480,663 |
| Shares issuable upon exercise of Z33 Series Seed Preferred Shares Put Right | ||
| Summary of Significant Accounting Policies | ||
| Total (in shares) | 0 | 2,000,000 |
| Shares issuable upon vesting of restricted share units | ||
| Summary of Significant Accounting Policies | ||
| Total (in shares) | 256,642 | 573,282 |
| Restricted share awards | ||
| Summary of Significant Accounting Policies | ||
| Total (in shares) | 124,999 | 249,997 |